From eebb9be153d9aba56baf4e6765d57d0db232491e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Feje=C5=A1?= <ns.fejes.stefan@gmail.com>
Date: Wed, 18 Jul 2018 11:23:00 +0200
Subject: [PATCH] add glossary/Regular-expressions

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 glossary/Regular-expressions.md | 4 ++++
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 create mode 100644 glossary/Regular-expressions.md

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+### Regular expressions
+
+Regular expressions (known as regex) are patterns used to match character combinations in strings.
+JavaScript provides regex implementation through the `RegExp` object.